Improvement in cultivators



J. S. JOHNSTON & b. A. JOHNSON. Cultivator.

No. 198,624. Patent ed Dec. 25, 1877.,

"Hall" HIIIIIIIIIIIIIIIIIIHH WITNESSES: I

ATTORNEYS.

Puoro-umomums n. WASHINGTON. u c

UNITED STATES PATENT OFFICE.

JOHN S. JOHNSTON AND CHARLES A. JOHNSON, OF ROCKFORD, ILLINOIS.

IM PROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 198,624, dated December 25, 1877; application filed October 22, 1877. I

, line a; m, Fig. 2. Fig. -2 is a top view of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention: is to furnish an improved cultivator which shall be so constructed that the plows may be raised from the ground by the backward movement of the driver, which may be easily guided and con- 1trolled, and which shall be simple in construe The invention will first be described in connection with the drawing, and then pointed out in claim.

A are the plow-beams, to the rear parts of which are secured the standards B of the plows (l, by means of hook-bolts D. The plow-beams A incline toward each other, extend forward to serve as a tongue, and their forward ends meet and are pivoted to each other by a bolt, (1/.

E is the neck-yoke, to the center of which is attached an eyebolt, e. The eye of the eyebolt 6 is placed between the forward ends of the beams A, and the bolt a, that connects said ends, passes through it. By this construction the neck-yoke will be connected with the forward ends of the beams A securely, and at the same timb in such a way as will give the said neck-yoke full control over them, while allowing the rear end of each beamto be moved vertically and laterally independent of the other. To the inner sides of the beams Aare secured eye or socket plates F by bolts which pass through slots in said plates, to cause the machine to be balanced by the weight of a lighter or heavier driver.

To the eyes or sockets of the plates F are pivoted or hinged the rear ends of the bars G, the forward ends of which are pivoted or hinged to the forward parts of the longitudinal bars -H. The rear parts of the bars H are secured to the axle I by hook-bolts J, and have crossheads formed upon them.

The cross-heads of the bars H have a mum ber of holes formed through them to receive the rod K, which also passes through holes in the bars L, near their forward ends. The forbars H, a little in front of their cross-heads. The bars L are bent inward and then rearward, and to their rear ends is attached the drivers seat M. By this construction the seat M can be adjusted higher or lower by changing the rod K from one hole to another in the cross-heads of the bars H. The forward ends of the bars H are attached to the opposite ends of a cross bar or block, N, to the center of which is pivoted the double-tree 0.

To the ends of the double-tree O are pivoted the whiffl'etrees P, in the usual way. The axle I is bent twice at right angles near its ends, to enable its middle parts to pass over tall plants without injuring them, and upon its journals revolve the wheels 2.

The beams A, a little in front of the axle I, are connected by an arched bar, It, the ends of which rest upon the said beams A, and are slotted longitudinally, to receive the bolts by which they are secured to said beams. This construction allows the beams Ato be adjusted wider apart or closer together, as may be required.

To the ends of the arched bar It, or to other supports attached to the beamsA, are attached the lower ends of the cords or chains S, which pass over guide-pulleys s, pivoted to the arms 8 attached to the segmental ratchet-wheels T or to the axle I. The other ends of the chains or cords S are attached to the levers U, the lower'ends of which are pivoted to the lower part of the ratchets T or to the axle I.

To the lovers U are attached pins or pawls u, to engage with the teeth of the ratchets T and hold said levers securely in the positions into which they have been adjusted.

The segmental ratchet-wheels T are attached to the axle I, and to them, or to the said axle I, are bolted the rear ends of the braces V the forward ends of which are secured to the ars H, to strengthen them against side strain.

To the inner sides of the beams A, at a litward ends of the bars L are pivoted tothe tle distance in front of the inner plows B O, are attached the upper ends of the bars W, to the lower ends of which are attached the forward ends of the plates X, which project to the rearward at the inner sides of the forward plows B O, to prevent small plants from being injured by the soil thrown by the said plows.

The levers U and the cords or chains S are designed for use for regulating the depth to which the plows enter the ground, and to support the beams and plows when passing to and from the field. the ground to pass obstructions, and when turning around, by the driver leaning back in his seat, and are again lowered to the ground when the driver moves forward to his ordinary position.

The plows are raised from Having thus described our invention, we clann as new and desire to secure by Letters Patent I The c mbination of the adjustableeye or socket plates F, the connecting-bars G, the

are raised by the drivers weight, substantially as herein shown and described.

JOHN S. JOHNSTON. CHARLES A. JOHNSON.

Witnesses:

LEWIS W. HYLAND, THOMAS SULLY. 

